package com.zhang.web.common.aspect;

import cn.hutool.json.JSONUtil;
import com.zhang.web.common.annotation.SysLog;
import com.zhang.web.modules.sys.entity.SysLogEntity;
import com.zhang.web.modules.sys.service.SysLogService;
import com.zhang.web.config.shiro.ShiroUtils;
import com.zhang.web.utils.HttpContextUtils;
import com.zhang.web.utils.IPUtils;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import javax.servlet.http.HttpServletRequest;
import java.lang.reflect.Method;
import java.util.Date;

/**
 * 系统日志，切面处理类
 * 处理@SysLog注解
 */
@Aspect
@Component
public class SysLogAspect {
    private static Logger logger = LoggerFactory.getLogger(SysLogAspect.class);
    @Autowired
    private SysLogService sysLogService;

    @Pointcut("@annotation(com.zhang.web.common.annotation.SysLog)")
    public void logPointCut() {
    }

    @Around("logPointCut()")
    public Object around(ProceedingJoinPoint point) throws Throwable {
        long beginTime = System.currentTimeMillis();
        //执行方法
        Object result = point.proceed();
        //执行时长(毫秒)
        long time = System.currentTimeMillis() - beginTime;
        //保存日志
        saveSysLog(point, time);
        return result;
    }

    private void saveSysLog(ProceedingJoinPoint joinPoint, long time) {
        MethodSignature signature = (MethodSignature) joinPoint.getSignature();
        Method method = signature.getMethod();

        SysLogEntity sysLog = new SysLogEntity();
        SysLog syslog = method.getAnnotation(SysLog.class);
        if (syslog != null) {
            //注解上的描述
            sysLog.setOperation(syslog.value());
        }

        //请求的方法名
        String className = joinPoint.getTarget().getClass().getName();
        String methodName = signature.getName();
        sysLog.setMethod(className + "." + methodName + "()");

        //请求的参数
        Object[] args = joinPoint.getArgs();
        try {
            String params = JSONUtil.toJsonStr(args[0]);
            sysLog.setParams(params);
        } catch (Exception e) {

        }

        //获取request
        HttpServletRequest request = HttpContextUtils.getHttpServletRequest();
        //设置IP地址
        sysLog.setIp(IPUtils.getIpAddr(request));
        try {
            //用户名
            String username = ShiroUtils.getUserEntity().getUsername();
            sysLog.setUsername(username);
            sysLog.setTime(time);
            sysLog.setCreateDate(new Date());
            //保存系统日志
            sysLogService.insert(sysLog);

        } catch (Exception e) {
            e.printStackTrace();
        }

        logger.info("saveSysLog:" + JSONUtil.toJsonStr(sysLog));
    }
}
